那天下午第三节课,我给学生上《代数式的求值》。新课结束,便进入问题解决环节。我布置了第一题:遗传是影响一个人身高因素之一,用父母身高可以预测子女的身高。根据以下儿子、女儿成年后身高公式,预测一下自己的身高。“学生刚读完此题,下课铃声就响了。为了让走读的学生趁着天色还亮好回家,我只好将这道题改为课外作业,并规定次日上午检查提问作业情况。 The third lesson that afternoon, I give students ”algebraic evaluation." The new class ends, they enter the problem-solving session. I arranged the first question: Inheritance is one of the factors that affect a person’s height, with the height of the parents can predict their children’s height. According to the following son, daughter adult height formula, predict their height. In order to allow students to take advantage of the sky is bright home, I had to change this subject to homework.